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Reticulocyte, Immature Fraction

Mnemonic:     
Name:    Reticulocyte, Immature Fraction
Reference Range:    2.4 - 15.0 %
Note:    The Immature Reticulocyte Fraction (IRF) value is an early marker for evaluating the regeneration of erythropoiesis.

Whereas the IRF percentage increases after only a few hours, the reticulocyte count increases after two to three days.

The IRF is routinely reported with automated reticulocyte counts.